Finding the Fourth Proportional to 2,558.90, 3,531.32 and 1,510.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.90 : 3,531.32 = 1,510.96 : x
2. Step 2: Convert to fraction form
   2,558.90/3,531.32 = 1,510.96/x
3. Step 3: Cross multiply
   2,558.90x = 3,531.32 × 1,510.96
4. Step 4: Simplify right side
   2,558.90x = 5,335,683.27
5. Step 5: Solve for x
   x = 5,335,683.27/2,558.90
6. Step 6: Final answer
   x = 2,085.15